Plat Map of Northern Pacific facilities at Seattle, Washington, April 1, 1919, Sheet Number 2, Line Segment 430, showing the Seattle-Argo line, Shore line, north end, 7th Avenue South.

Plat Map of Northern Pacific facilities at Seattle, Washington, September 1, 1919, Sheet Number 2, Line Segment 430, showing the Seattle-Argo line, Shore line, Airport Way-Argo.

Plat Map of Northern Pacific facilities at Seattle, Washington, October 15, 1918, Sheet Number 2, showing the East Marginal Way, government and industry spurs.

Plat Map of Northern Pacific facilities at Seattle, Washington, October 15, 1918, Sheet Number 1, Line Segment 430, 623, showing the Seattle-Argo line, Stacy Street, Argo Yard, ColoradoÿAvenue lead, industry spurs.

Plat Map of Northern Pacific facilities at Seattle, Washington, October 21, 1915, Sheet Number 1, Line Segment 51, showing the Seattle-Tacoma line, Milwaukee Road Van Asselt, south end.

Plat Map of Northern Pacific facilities at Seattle, Washington, October 21, 1915, Sheet Number 2, Line Segment 51, showing the Seattle-Tacoma line, Airport Way, south end.

Plat Map of Northern Pacific facilities at Seattle, Washington, December 17, 1915, Sheet Number 1, Line Segment 403, showing the Seattle-Sumas line, University, 7th Avenue Northeast-University of Washington campus.

Plat Map of Northern Pacific facilities at Seattle, Washington, December 22, 1915, Sheet Number 2, Line Segment 403, showing the Seattle-Sumas line, University of Washington campus east side.

Plat Map of Northern Pacific facilities at Seattle, Washington, December 17, 1915, Sheet Number 2, Line Segment 403, showing the Seattle-Sumas line, Latona, Eastern Avenue North-11th Avenue Northeast.

Plat Map of Northern Pacific facilities at Seattle, Washington, December 22, 1915, Sheet Number 1, Line Segment 403, showing the Seattle-Sumas line, Ravenna, 25th Avenue Northeast-30th Avenue Northeast.